کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5205352 1502929 2017 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Elliptic crack behavior emanating from the cement mantle of the total hip prosthesis
ترجمه فارسی عنوان
رفتار ترک های بیضوی که از گوشته سیمان پروتز کامل پروتز استخوان به وجود می آید
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
چکیده انگلیسی
Damage accumulation and failure in the cement polymethylmethacrylate (PMMA) is the most prominent in a cemented total hip arthroplasty (THA) leading to eventual implant loosening. In this study, we used the three-dimensional finite element method (FEM) to analyze and calculate the three modes (I, II and III) of the stress intensity factor (SIF) of elliptic crack in the cement mantle for different sizes, orientation and location of crack according to different patient activities. From obtained results, we show that the opening crack mode is proportional to the stress applied on the damaged part (compression or traction). The risk of crack failure in the anterior region of the proximal part is more important and causes a danger of fracture of cement whose the value of the SIF reached exceeds the intrinsic resistance of the material. The study of the daily patient activities shows us that the climbing stairs represents the maximum value of SIF.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer Testing - Volume 61, August 2017, Pages 441-447
نویسندگان
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